The WRCFV8-3444.5-3447.5-3452.5-3455.5-35-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 3.4475 to 3.4525 GHz, Bandwidth 5 MHz, Insertion Loss 1.5 to 3.5 dB, Rejection 35 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCFV8-3444.5-3447.5-3452.5-3455.5-35-1 can be seen below.